/ ˌʌnˈwaɪnd; NAmE / verb ( un·wound , un·wound / ˌʌnˈwaʊnd; NAmE /)
1.
to undo sth that has been wrapped into a ball or around sth :
[ vn ]
to unwind a ball of string
He unwound his scarf from his neck.
[ v ]
The bandage gradually unwound and fell off.
2.
[ v ] to stop worrying or thinking about problems and start to relax
SYN relax , wind down :
Music helps me unwind after a busy day.